Kulverstukas, if I may impose on your time, where are the pitot heat switches located, (overhead panel, I suspect, but where?). Also, I assume they are set to "ON" using either the after-start or before-takeoff checklist; would those checklists be available?
I understand each air carrier may develop their own checklists but the manufacturer's checklists would likely be available, would they?
(2) Heating swithes (buttons) - yellow text [OVERHEATING]; white [OFF]
(3) Heating CHECK
Checklist AT LINEUP (BEFORE TO)
Pitot heating ..... ON
Warnings .......... NONE
Time allowed of Pitot heating on the ground .... 2 min
Time before Pitot OVERHEAT warning ... 5 min
Manufacturer data of max time of heating without external cooling ... 10 min
UPD: OVERHEAT on-ground warning is linked to LMG ground sensor